About Hebrew Date Conversion

The Hebrew calendar is a lunisolar calendar with 12 or 13 months, where each month begins with the new moon. A leap year (with 13 months) occurs 7 times in every 19-year cycle, keeping the holidays aligned with the seasons.

Gematriya is the traditional method of writing Hebrew dates using Hebrew letters. For example, Tu B'Shvat represents the 15th day of the month of Shvat. This tool displays Hebrew dates in both gematriya notation and numeric format.

The conversion is powered by the hebcal library, a widely-used and reliable library for Hebrew calendar calculations. The tool supports all years and correctly handles leap years with Adar I and Adar II months.

Frequently Asked Questions

How does the Hebrew calendar work?+
The Hebrew calendar is a lunisolar calendar. Each month begins with the new moon (29 or 30 days), and a leap year adds an extra month of Adar to keep the calendar aligned with the solar year.
What is gematriya notation for dates?+
Gematriya is a traditional system of writing numbers using Hebrew letters. In Hebrew dates, instead of writing 15, you write ט״ו, and instead of 5784, you write התשפ״ד. This tool shows both formats.
What is a leap year in the Hebrew calendar?+
A Hebrew leap year has 13 months instead of 12. The extra month is Adar I, and the regular month becomes Adar II. Leap years occur 7 times in every 19-year cycle.
How accurate is this converter?+
The tool is powered by the hebcal library, the leading library for Hebrew calendar calculations. The calculations are accurate for all dates supported by the library.
What date range does the converter support?+
The tool supports a wide range of Hebrew years. For practical use, it covers all dates relevant to daily life, holidays, and family events.